I was afraid that it was one at a time. I just have so many entries from some sources, like the different census years in the USA. I may have 50 entries for 1910, 75 for 1920 etc. I just need the source title listed once.
I also spent days working on place names. I wanted it one particular way, but, FTM (and Ancestry) had other ideas. The hints come in a variety of ways, so I rarely use them other than stepping stones.
I hope that there is a solution somewhere.